Smuttiness in this chapter. Enjoy!

Saphira's eyes were closed as Optimus kissed her neck, cheeks and lips, he nibbled so lightly at her skin and she did not try to stop him. He ran his finger along her chest gently, directly between her breasts and caught the zipper with the tip of his finger, teasing it gently. The cold, desert air didn't bother her with Optimus's warmth around her body. Saphira opened her eyes for a moment, smiling at Optimus as he pulled the zipper down before closing her eyes again. He felt the need to see her natural body, just as she sees his. He peeled her jacket off, Saphira assisted him and Prime placed the jacket down by him, eyeing off her shirt.

Saphira felt as though her heart could leap out at anytime. Optimus could feel the pace of her heartbeat, yet as she did not seem uncomfortable, he did not feel concerned about it. "You're driving me into something, Optimus," Saphira breathed out, half opening her eyes to look at his optics. "Something I know I want."

Optimus smiled, happy to hear she was enjoying herself and encouraged him to continue. He had already seen her without her shirt and pants before when Ratchet inspected her bruises, but not without the last layers he saw on her body. Optimus's optics soften, his fingers carefully lift the fabric of her shirt, taking great care to not rip her shirt or cause any harm to her body. Saphira let out a sudden moan, surprising him with the sound. She felt a little embarrassed, but he wasn't away of the light static on her skin coming from his fingers. It tickled gently, and she liked it. And the static did not stop, making her excited to feel him touching her body as much as he wanted to.

Saphira wished she was exploring his body too. She looked at his face and kissed him, pressing her lips against his and feeling his fingers lifting her shirt higher, running along the arch of her back. Optimus felt the passion on his lips, he returned that with a gentle passion. Her tongue licked his lips and he did not shy away. His lifts her shirt further and she leaned away from his face, lifting her arms so he could pull her shirt off. The cool air made her shiver briefly, covering her skin in goose bumps, but she didn't care. The fire within her body, and Optimus's heat radiating from his body was more than enough to keep her warm. And she could just feel the warmth of the fire on her back as it crackled on the dead plants gently.

Optimus took this moment to admire her body. His optics followed the curves of her body, they seemed to give her a natural grace that drew him in even further. Her skin was glowing under the moonlight, it was as it the moon had kissed her with this very skin, and it felt very smooth, and soft. It was a delight to feel under his touch. His hands cupped her curved body perfectly, Saphira almost felt shy as he stared at her body. This was the first time Saphira really could show her body to someone she loved. Yet…she didn't know how far she was willing to go at the moment.

He ran his index finger upward to the clip of her bra, glancing at her breasts for a moment and looked at her eyes. "I assume these are what you humans use to feed your offspring?" Saphira nodded silently, he flinched when he felt her bra clip suddenly come undone. His engine rumbles gently, and she shuddered as he teased the loose straps with his thumbs. "You are so beautiful…"

She blushed deeply at him. "And you are very handsome. I don't think I've said that yet, but you are highly attractive for an autobot." She didn't flinch or feel the need to cover herself as he pulled her bra off carefully.

He was seeing her chest bare for the first time. Optimus circles his thumbs around her breasts gently, making her shudder and let out another moan of delight. The static from his fingers tickled her sensitive flesh, her nipples harden at his very touch. She placed her hands on his chassis to circle in response to the touch. The gentle, sensual rumble from deep within him was music to her ears. Saphira leaned down to kiss his chassis, she desired to kiss his entire body. He kept his thumbs circling her breasts gently as she did so.

She was searching for a sweet spot that Optimus would enjoy her teasing as much as she has enjoyed his. He watched her quietly with a smile on his face, he knew what she was doing and he did not dare to try and stop her. And she found it, between the windows on his chassis was a shallow valve that keep the chassis closed and the Matrix sealed. She kissed it and the tremor through his body startled her, but when Saphira saw Optimus winking at her that he liked it, she placed her hand on it and circled it, feeling the shuddering of Optimus's body. She was somewhat pleased with herself. She looked forward to exploring more and finding more sweet spots to tease Optimus, even if she did so casually just to annoy him. She expected he might do the same to her…within in reason of course.

Ratchet would more certainly have a rant ready and waiting for both of us if he happens to see our teasing with each other…

And yet…she knew a part of her was telling her that she was crazy to make out with an autobot. Ratchet already stated that they had no human form…so this was just crazy. And dangerous…but Saphira didn't care too much. She loved the way Optimus was treating her, he was still careful about her. He would not push her too far. Optimus knew to stop if she asked…even if he desired to keep going forward.

A friendship is dangerous enough, but anything closer is worse.

Those words Ratchet told Optimus fill his processor for a moment. He knew that Ratchet was very against this, and Optimus had considered just having a very close friendship over something more. But…he just could not contain his feelings. Not while Saphira responded to them, and the fact she in turn would make him feel just as loved…Optimus knew that it would be almost impossible to not hurt her if he refused physical gestures.

Optimus lifted her slightly and moved his head closer to her, placing his mouth around her right breast gently. Saphira was very surprised by his boldness, he kissed her nipple gently and she jumped when she felt him lick her. She had not realized he had a tongue, she never actually seen any as she assumed they didn't have any. She did wonder if they had taste buds and if they had favourite flavor mixes of energon…if they were still able to add flavors to it of course. But it was a pleasant surprise. And his tongue felt almost like it wasn't metal, but it still was metal, just soft and gentle as he watched Saphira carefully to make sure he was doing something right. And it seemed by how she was reacting, he was doing it right, and it made his spark incredibly warm.

Saphira placed her hands on his head and rubbed the antennas gently, Optimus jumped in surprise at the touch. She guessed they were sensitive and kissed them gently. Optimus's vents hiss loudly and he let out a low groan, it was soft and rumbled gently onto her skin and breast. Saphira felt his lips vibrate gently on her breast, sending pleasurable sparks through her body. She laid her cheek on his head while Optimus moved his lips to her left breast to do the same. She kept rubbing his antenna gently, her eyes glanced up at the sky, smiling as the stars glitter peacefully above them.

Optimus is right…I wished upon the stars…he came from the stars…even if it was not because of me…

As sensual this moment was feeling, Saphira felt a sense of closeness to Optimus like she never had before. She could not think of a better way to spend the first, official time they had alone together. She had originally considered just laying back, staring at the stars and telling him stories of her world. Yet…that just did not happen. She yearned for his touch, hungered to be close to his spark and to fall into her world of dreams surrounded by his warmth. Nothing could be any better.

She did not feel surprised when Optimus ran his finger down her spine, the static coming through made her shudder in delight. The tip of his finger teased the rim of her pants, pulling gently at it to tug it down. Saphira didn't try to stop him, however, she slowly began to feel nervous. He teased the rim of her panties as well while he pulled her pants down. He leaned his head back from her breasts, she lifted her head from the top of his and they kiss in gentle passion. She felt her pants slowly get pulled off her feet and she ran his fingers along her thighs, the static from the tip of his fingers made her thighs tremble and twitch is sweet, pure delight.

Optimus smiled at her, she was so beautiful, so patient to allow him to explore. And with his fingers inches from her core, her body trembled from both excitement and nervousness. The spark from his fingers were already making contact with her core, setting a fire of pleasure that Saphira quickly would enjoy. He could see that Saphira was growing with excitement. Saphira moaned softly against his lips leaning away with a gasp as Optimus rubbed his fingers between her thighs. He was intensely curious, he did not know of human reproduction, yet as he watched her face fill with delight and heard her moans of pleasure, he was on the right trail.

Saphira ran her hands down his chassis, moving below his chassis and lowered herself to kiss his stomach. Optimus hummed softly, smiling and optics twitching in pure delight. He kept his gentle hold of her and moved his hand down to his thigh, the tip of fingers laid close to the plate covering of his crotch. He wanted to pull it off, however…he wanted Saphira's curiosity to lead her and unlock it herself. Just as he kept rubbing his thumb between her thighs.

Saphira did glance down at his hand, she saw the plate covering and she could see faint, pale blue energon leaking from it. She felt her cheeks turn red…she realized that the bots had coverings for themselves. Was she curious? Of course. Was she terrified? Absolutely. Saphira's nervousness grew suddenly as she realized how far they were getting. And she realized she wasn't ready to go further than they had at the moment. Not yet…and she felt a sense of urgency suddenly grow in her to stop Optimus from going further…as much as she still desired him too, the fear just took over and she felt a sense of sudden urgency to stop him.

Optimus lifted his finger along her thigh to the rim of her panties, teasing them gently. However, Saphira jolted in fear and pushed at his finger suddenly. "No!" Optimus blinked and flinched in surprise at the sudden, and high pitched tone she used to stop him. She trembled and felt her breathing suddenly quicken in fear. "Not yet…" She looked up at him with wide eyes. "I'm not ready…"

Optimus lifts her closer to his face, his optics softening to worry and sadness. "Did I do something wrong?"

She shakes her head as she trembled in his palm. "N-No…I'm sorry…it's just…I'm scared…" She had tears in her eyes and looked away from him. "Where are my clothes?" She suddenly crossed her arms over her chest and curled her legs together, something that confused and saddened Optimus, making him worry what he had done.

He gathered the clothes he had placed down and ensured they had no dust on them before he handed the clothes to her. Saphira grabbed her bra first to put on, shivering as the wind began to pick up gently and her body was soon covered in goose bumps and she shivered. She felt his optics gaze at her, and she was certain he was confused.

She didn't want him to feel guilty though. "I'm sorry…" She manages to say in a small, soft voice. "It isn't you, Optimus. It…it's me…" She slipped her shirt on and began to pull her pants on. "I'm just…not ready to go further…"

It took a few minutes of processing for Optimus to realize exactly what Saphira was saying. She had enjoyed the teasing, the caress and exploration…but he had pushed it in an attempt to possibly begin preparing for the next step. He smiled and intakes heavily before he suddenly kissed her head, he felt her tense in surprise upon feeling his lips.

"I apologize, Saphira," Optimus purred in sincere kindness. "I was…caught up in the moment." She looked at him with tear eyes, he smiled at her and wipes her cheeks gently with his thumb. "Do not feel ashamed. You are young…and I should have known better." He glanced at the fire for a moment before looking back at her. "We do not need to restart our…exploration if you do not want to."

She ruined the moment…and she felt horrible for it. She slipped her jacket on, folding her arms and sighing deeply. "I appreciate your understanding, Optimus. I just…feel kind of stupid for ruining the moment." She sniffled a little, shifting her body around so her back was towards Optimus as she sat in his palm, lifting her knees up to rest her arms on them. "I don't think I will forget it so easily…I probably will even dream of this night often."

He was glad that she would remember tonight. She have had a moment of fear, and that was okay. Optimus had no intention of pushing her further. "That is a positive thing to think about, Saphira." He thought about a few things that they could do now, there was no word from Ratchet if they could return to base yet. "You should have brought your guitar." She turned to look at him in surprise. "We overheard you sing the other night. Was that a song your mother used to sing to you?"

Saphira had no idea the bots heard her singing a part of You'll Be in My Heart, however it seemed that Optimus might have liked her singing. The others too, she didn't know if she should feel shy or not about it. "No…actually…it's a song that comes from a movie I really like. It just happens to…be relatable to me. Especially with how my mother and I were…there was another song she sang to me. I never figured out where she knew the song was until after her passing."

Optimus hummed gently as Saphira looked up at the stars with a sad expression. "I would be very intrigued and honoured to hear that song. If you feel up to singing…that is."

Saphira stared at the stars, thinking of her mother now that Optimus has asked her about the song her mother would often sing to her. She didn't know if she wanted to sing it or not. She didn't think she was good at singing. Her mother had a beautiful voice, and Saphira often wished for a voice like hers. But…she knew she might not really realize what her voice sounds like to others. If she managed to intrigue Optimus with her singing…it was a special thing to her.

And yet…Saphira almost felt as though her mother was looking down upon her right now. She liked to believe that the stars held the loved ones of those who have passed on. Just as Mufasa tells Simba of the great kings of the past in Lion King. She did not know if her mother would even be proud of her. She let her mind go back to a moment in her past that she remembers well.

Flashback

A four-year-old Saphira squeezed in delight as she came across a rock pool by the ocean. She could see starfish, sea urchin, a crab and several small fish within this small space of salt water. Saphira crouched down, holding her knees as she stared into the pool with wide eyes on awe, she had the urge to stick her hand in and take a hold of the creatures within. However, he mother had always taught her to respect the spaces of all living creatures. This was their home, their world and disturbing them would only create a rift and an injustice that can come back to bite you in the future. Letting the creatures be at peace was the most important thing in the world, and it was from her mother she learned to respect the creatures of this world.

"Mommy!" Saphira yelled, turning her head to look over her shoulder. "I found a rock pool! There are lots of amazing creatures in it! Come and see!" She waved her hand to gesture for her mother to walk over.

Walking over in a blue bathing suit, her mother's black hair is tied back into a ponytail, and she had a smile on her lips, kneeling beside her daughter as she looked into the pool. "How wonderful! I love rock pools, they are some of my favorite things in the world."

"Me too!" Saphira exclaimed, bounce slightly on her feet as she stared into the pool. "It's almost like I am watching from the sky for them. How amazing is that?!"

"Yes…it is amazing…" Her mother smiled and looked at her daughter, Saphira was very smart for her age and had a bright future ahead. "Have you ever considered that maybe people could be looking at us from the stars we see at night?"

She looked at her with mother in surprise and nodded with a big smile. "Of course mommy! But…who would be watching us?"

"All of those who have passed on, sweetie. Our souls roam the Earth when we die, and we eventually meet up with the sky. It is there people because a new glitter in the sky, some dim and others stay bright forever." Her mother placed her hand on Saphira's shoulder gently. "I want you to remember this, Saphira."

"Of course! I remember a lot of good things you tell me!" Saphira turned her body to face her mother with eager eyes. "What do I get to learn today?"

Her mother chuckled and moved a strand of hair out of Saphira's eyes. "When you pause and look up to the sky at night, remember that the stars love us like we love them. That is why when we make a wish, they carry and keep it close, so that one day, they will grant that wish and bring you a joy you will never want to get rid of. I know someday you will want someone to love you when you get older, don't you?"

Saphira nodded with a big smile on her face. "Yes! I wish for someone who is tall, strong and handsome! And someone who will listen and understand me. I don't want anything else, I don't think."

Her mother chuckled again at her daughter. "And that wish has been heard, even if you wish it in your heart, Saphira." She paused for a moment, glancing at the rock pool thoughtfully before looking back at Saphira. "You should also remember that if I ever leave you…"

"You won't!" Saphira shakes her head with a grin, no believing her mother for a second. "We still have so many adventures to go on! You will never leave me!"

The woman's face softened slightly hearing her daughter's words, but she continued speaking. "I have heard your wish now, Saphira. If I do leave you to join the stars early, I will make sure you wish will come true. I will make that promise."

End of Flashback

Saphira opened her eyes with tears, staring at the stars and smiling. She never understood what her mother had said to her as a child, and she didn't understand until now. Optimus is the very embodiment of someone who listens to her, comforts her and understands her…along with him being tall, strong and handsome…even if he was never who she would have expected to come into her life. She felt a sense of comfort knowing that this is the delivered promise in her life.

Optimus stared at her as she had not responded to him for several minutes, and he worried he once again messed up. "Saphira…" He purred softly, she turned her body around and he saw fresh tears in her eyes. "I am…" He was cut off and his optics widen when she suddenly jumped from his hand, wrapping her arms around his neck and kissing him passionately.

It was very unexpected, and yet, Optimus kissed her back, wrapping his arms around her protectively. She was no longer trembling, she was actually relaxed and she seemed to be happy. He did not know why she had a sudden change of mood again, however, he was learning that humans were often confusing at times and he was learning to understand them as best as he could so he could better relate and understand Saphira.

She pulled away from kissing him and smiled at him. "I really am sorry if I made you feel guilty, Optimus. It wasn't my intent. Yes, I will gladly sing the song my mother used to sing to me." She glanced back up at the stars, letting a couple tears fall from her eyes. "I don't have the same melodic voice she had…but I guess in a way…I need to thank her for something she promised me a long time. And I know you are even more special to me."

Optimus did not understand fully by what she meant, however, he was still intrigued by the song. "I think you have a beautiful voice, Saphira. I sometimes replay the song you sang in my head. It is calming…it makes me spark sing along with you. Would I also be in your heart, just as your mother is?"

She blushed a little and nodded. "Of course. I feel like I'm home, Optimus. With you, right here, right now. Even if I did sour the mood…and make myself a bit of a burden again, I guess." He widened his optics slightly in worry upon hearing her say that about herself again. She giggled at him, kissing his cheek as a quick perk. "Just kidding."

He relaxed when she told him she was joking, yet it still worried him that she did feel that way. He knew in his spark she was not a burden. He was still sad he had frightened her, and she in turn felt bad about her reaction. Optimus knew now to be extra careful with her, and allow things to go more her speed. Optimus was willing to be even more patient than he ever has before.

He moved her to his shoulders and she gladly slid onto his smooth pads. She shuffled closer to lean against his helm, with her cheek against his. "I will say, even though I never met her, I feel like I know your mother will be proud of you. She is smiling on you tonight, Saphira. That is why your eyes sparkle, they resemble the reflection of your mother's light that still shines within you."

That nearly broke Saphira into fits of sobs, hearing something so sweet and genuine from Optimus…her love for him just grew ten-fold. She kissed his cheek and ran her hand along it, staring at the fire for a moment before she hummed a soft tune that she knew all too well. Optimus did not say anything, he listened to her gentle humming silently. And when she finally opened her mouth to sing, Optimus just smiled and ensured that he would replay her song and voice in his processor just as he has already.

'How very special are we,
For just a moment to be,
Part of life's eternal rhyme.
How very special are we,
To have on our family tree.
Mother Earth and Father Time.'

Saphira rocked her body gently as she sang, feeling as though her mother was sitting next to her right now, listening to her sing and holding her hand. It was a great feeling, and Saphira wanted this to last forever…with just herself and Optimus.

'He turns the seasons around,
And so he changes her gown.
But they always look in their prime.
They go on dancing their dance,
Of everlasting romance.
Mother Earth and Father Time.'

The lyrics Optimus was hearing in his processor were beautiful. While he has lived many years, he knew very well humans lived far shorter lives than the race of transformers. Meaning they take their lives in a different way than they do. And Optimus could not agree more with these words. They were special to have their lives part of something that continued to turn for every new life and generation.

'The summer larks return to sing,
Oh, what a gift they give!
Then autumn days grow short and cold,
Oh, what a joy to live!

How very special are we,
For just a moment to be,
Part of life's eternal rhyme.
How very special are we,
To have on our family tree.
Mother Earth and Father Time.'

Saphira came to the end of the song, she rested her cheek on Optimus's and allowed the tears to stain his cheek as she sniffled softly. She looked up at the sky, silently thanking her mother for gifting her the wish she had made as a child on that beach many years ago. She will never forget it, just as she will never forget her.

"Beautiful…" She turned her head slightly at Optimus's gentle purr. "I will remember this day, Saphira. And replay that song in my processor, to remind my spark how simple things in life is just as special as the extraordinary. I love you."

Saphira giggled and kissed his cheek gently, shifting to sliding off his shoulder into his waiting hand. "I love you too, Optimus. I think we might be granted an entire night alone."

"Perhaps…" He kissed her gently and she felt the static once again from his fingers, making her smile. "I highly doubt Ratchet is going to allow that, even with the racket that is likely still going on in that base. I imagine Bulkhead and Wheeljack are lobbing right now."

She raised a curious eyebrow as she didn't recognize the word, but she did not ask about it for now. She laid her head under his chin, pressing her head on his chest just above his chassis. She could hear some of his internals, and the pulse of his spark. It was nice. She found herself being lulled into a sense of calmness, not realizing she was actually tired. Today had been a long day.

Optimus held Saphira where she had moved to lay against him, rubbing her back with him thumb and staring at the fire quietly. The fire was starting to smoulder as the fuel was running out. He was about to speak to Saphira about returning to the base when he heard the sound of his com link going off. "Optimus, this is Ratchet. You need to return to base, we've had…some complications arise."

Optimus raised an eyebrow slightly, curious about what Ratchet had meant. "Understood, we are on our way back to the base." He shifted Saphira to look down at her easier, only to feel her slump a little and he realized she was sleeping. He smiled and kissed her forehead. "I'll watch over you, Saphira…my beautiful, sweet sparkmate…"

Optimus puts out the fire to ensure there was no suspicion by anyone before he transformed, carefully ensuring Saphira was comfortable in the cab so her body would not shift and jerk suddenly before driving away. He did not know if it was urgent to return to the base, so he did not drive as quickly as he would have normally. He did not want to disturb his precious passenger.